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linux/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
Andrey Grodzovsky d10d0daa20 drm/amdgpu: Handle IOMMU enabled case. 
Problem:
Handle all DMA IOMMU group related dependencies before the
group is removed. Those manifest themself in that when IOMMU
enabled DMA map/unmap is dependent on the presence of IOMMU
group the device belongs to but, this group is released once
the device is removed from PCI topology.

Fix:
Expedite all such unmap operations to pci remove driver callback.

v5: Drop IOMMU notifier and switch to lockless call to ttm_tt_unpopulate
v6: Drop the BO unamp list
v7:
Drop amdgpu_gart_fini
In amdgpu_ih_ring_fini do uncinditional  check (!ih->ring)
to avoid freeing uniniitalized rings.
Call amdgpu_ih_ring_fini unconditionally.
v8: Add deatiled explanation

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210517143851.475058-1-andrey.grodzovsky@amd.com
2021-05-19 23:50:27 -04:00

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/*
* Copyright 2014 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <drm/drm_cache.h>
#include "amdgpu.h"
#include "gmc_v6_0.h"
#include "amdgpu_ucode.h"
#include "amdgpu_gem.h"
#include "bif/bif_3_0_d.h"
#include "bif/bif_3_0_sh_mask.h"
#include "oss/oss_1_0_d.h"
#include "oss/oss_1_0_sh_mask.h"
#include "gmc/gmc_6_0_d.h"
#include "gmc/gmc_6_0_sh_mask.h"
#include "dce/dce_6_0_d.h"
#include "dce/dce_6_0_sh_mask.h"
#include "si_enums.h"
static void gmc_v6_0_set_gmc_funcs(struct amdgpu_device *adev);
static void gmc_v6_0_set_irq_funcs(struct amdgpu_device *adev);
static int gmc_v6_0_wait_for_idle(void *handle);
MODULE_FIRMWARE("amdgpu/tahiti_mc.bin");
MODULE_FIRMWARE("amdgpu/pitcairn_mc.bin");
MODULE_FIRMWARE("amdgpu/verde_mc.bin");
MODULE_FIRMWARE("amdgpu/oland_mc.bin");
MODULE_FIRMWARE("amdgpu/hainan_mc.bin");
MODULE_FIRMWARE("amdgpu/si58_mc.bin");
#define MC_SEQ_MISC0__MT__MASK 0xf0000000
#define MC_SEQ_MISC0__MT__GDDR1 0x10000000
#define MC_SEQ_MISC0__MT__DDR2 0x20000000
#define MC_SEQ_MISC0__MT__GDDR3 0x30000000
#define MC_SEQ_MISC0__MT__GDDR4 0x40000000
#define MC_SEQ_MISC0__MT__GDDR5 0x50000000
#define MC_SEQ_MISC0__MT__HBM 0x60000000
#define MC_SEQ_MISC0__MT__DDR3 0xB0000000
static void gmc_v6_0_mc_stop(struct amdgpu_device *adev)
{
u32 blackout;
gmc_v6_0_wait_for_idle((void *)adev);
blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
/* Block CPU access */
WREG32(mmBIF_FB_EN, 0);
/* blackout the MC */
blackout = REG_SET_FIELD(blackout,
MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
}
/* wait for the MC to settle */
udelay(100);
}
static void gmc_v6_0_mc_resume(struct amdgpu_device *adev)
{
u32 tmp;
/* unblackout the MC */
tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
/* allow CPU access */
tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
WREG32(mmBIF_FB_EN, tmp);
}
static int gmc_v6_0_init_microcode(struct amdgpu_device *adev)
{
const char *chip_name;
char fw_name[30];
int err;
bool is_58_fw = false;
DRM_DEBUG("\n");
switch (adev->asic_type) {
case CHIP_TAHITI:
chip_name = "tahiti";
break;
case CHIP_PITCAIRN:
chip_name = "pitcairn";
break;
case CHIP_VERDE:
chip_name = "verde";
break;
case CHIP_OLAND:
chip_name = "oland";
break;
case CHIP_HAINAN:
chip_name = "hainan";
break;
default: BUG();
}
/* this memory configuration requires special firmware */
if (((RREG32(mmMC_SEQ_MISC0) & 0xff000000) >> 24) == 0x58)
is_58_fw = true;
if (is_58_fw)
snprintf(fw_name, sizeof(fw_name), "amdgpu/si58_mc.bin");
else
snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
err = request_firmware(&adev->gmc.fw, fw_name, adev->dev);
if (err)
goto out;
err = amdgpu_ucode_validate(adev->gmc.fw);
out:
if (err) {
dev_err(adev->dev,
"si_mc: Failed to load firmware \"%s\"\n",
fw_name);
release_firmware(adev->gmc.fw);
adev->gmc.fw = NULL;
}
return err;
}
static int gmc_v6_0_mc_load_microcode(struct amdgpu_device *adev)
{
const __le32 *new_fw_data = NULL;
u32 running;
const __le32 *new_io_mc_regs = NULL;
int i, regs_size, ucode_size;
const struct mc_firmware_header_v1_0 *hdr;
if (!adev->gmc.fw)
return -EINVAL;
hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data;
amdgpu_ucode_print_mc_hdr(&hdr->header);
adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version);
regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
new_io_mc_regs = (const __le32 *)
(adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
new_fw_data = (const __le32 *)
(adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
running = RREG32(mmMC_SEQ_SUP_CNTL) & MC_SEQ_SUP_CNTL__RUN_MASK;
if (running == 0) {
/* reset the engine and set to writable */
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
/* load mc io regs */
for (i = 0; i < regs_size; i++) {
WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(new_io_mc_regs++));
WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(new_io_mc_regs++));
}
/* load the MC ucode */
for (i = 0; i < ucode_size; i++) {
WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(new_fw_data++));
}
/* put the engine back into the active state */
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
/* wait for training to complete */
for (i = 0; i < adev->usec_timeout; i++) {
if (RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL) & MC_SEQ_TRAIN_WAKEUP_CNTL__TRAIN_DONE_D0_MASK)
break;
udelay(1);
}
for (i = 0; i < adev->usec_timeout; i++) {
if (RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL) & MC_SEQ_TRAIN_WAKEUP_CNTL__TRAIN_DONE_D1_MASK)
break;
udelay(1);
}
}
return 0;
}
static void gmc_v6_0_vram_gtt_location(struct amdgpu_device *adev,
struct amdgpu_gmc *mc)
{
u64 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF;
base <<= 24;
amdgpu_gmc_vram_location(adev, mc, base);
amdgpu_gmc_gart_location(adev, mc);
}
static void gmc_v6_0_mc_program(struct amdgpu_device *adev)
{
int i, j;
/* Initialize HDP */
for (i = 0, j = 0; i < 32; i++, j += 0x6) {
WREG32((0xb05 + j), 0x00000000);
WREG32((0xb06 + j), 0x00000000);
WREG32((0xb07 + j), 0x00000000);
WREG32((0xb08 + j), 0x00000000);
WREG32((0xb09 + j), 0x00000000);
}
WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
if (gmc_v6_0_wait_for_idle((void *)adev)) {
dev_warn(adev->dev, "Wait for MC idle timedout !\n");
}
if (adev->mode_info.num_crtc) {
u32 tmp;
/* Lockout access through VGA aperture*/
tmp = RREG32(mmVGA_HDP_CONTROL);
tmp |= VGA_HDP_CONTROL__VGA_MEMORY_DISABLE_MASK;
WREG32(mmVGA_HDP_CONTROL, tmp);
/* disable VGA render */
tmp = RREG32(mmVGA_RENDER_CONTROL);
tmp &= ~VGA_VSTATUS_CNTL;
WREG32(mmVGA_RENDER_CONTROL, tmp);
}
/* Update configuration */
WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
adev->gmc.vram_start >> 12);
WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
adev->gmc.vram_end >> 12);
WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
adev->vram_scratch.gpu_addr >> 12);
WREG32(mmMC_VM_AGP_BASE, 0);
WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
if (gmc_v6_0_wait_for_idle((void *)adev)) {
dev_warn(adev->dev, "Wait for MC idle timedout !\n");
}
}
static int gmc_v6_0_mc_init(struct amdgpu_device *adev)
{
u32 tmp;
int chansize, numchan;
int r;
tmp = RREG32(mmMC_ARB_RAMCFG);
if (tmp & (1 << 11)) {
chansize = 16;
} else if (tmp & MC_ARB_RAMCFG__CHANSIZE_MASK) {
chansize = 64;
} else {
chansize = 32;
}
tmp = RREG32(mmMC_SHARED_CHMAP);
switch ((tmp & MC_SHARED_CHMAP__NOOFCHAN_MASK) >> MC_SHARED_CHMAP__NOOFCHAN__SHIFT) {
case 0:
default:
numchan = 1;
break;
case 1:
numchan = 2;
break;
case 2:
numchan = 4;
break;
case 3:
numchan = 8;
break;
case 4:
numchan = 3;
break;
case 5:
numchan = 6;
break;
case 6:
numchan = 10;
break;
case 7:
numchan = 12;
break;
case 8:
numchan = 16;
break;
}
adev->gmc.vram_width = numchan * chansize;
/* size in MB on si */
adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
if (!(adev->flags & AMD_IS_APU)) {
r = amdgpu_device_resize_fb_bar(adev);
if (r)
return r;
}
adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
adev->gmc.visible_vram_size = adev->gmc.aper_size;
/* set the gart size */
if (amdgpu_gart_size == -1) {
switch (adev->asic_type) {
case CHIP_HAINAN: /* no MM engines */
default:
adev->gmc.gart_size = 256ULL << 20;
break;
case CHIP_VERDE: /* UVD, VCE do not support GPUVM */
case CHIP_TAHITI: /* UVD, VCE do not support GPUVM */
case CHIP_PITCAIRN: /* UVD, VCE do not support GPUVM */
case CHIP_OLAND: /* UVD, VCE do not support GPUVM */
adev->gmc.gart_size = 1024ULL << 20;
break;
}
} else {
adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
}
adev->gmc.gart_size += adev->pm.smu_prv_buffer_size;
gmc_v6_0_vram_gtt_location(adev, &adev->gmc);
return 0;
}
static void gmc_v6_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
uint32_t vmhub, uint32_t flush_type)
{
WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
}
static uint64_t gmc_v6_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
unsigned vmid, uint64_t pd_addr)
{
uint32_t reg;
/* write new base address */
if (vmid < 8)
reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
else
reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + (vmid - 8);
amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
/* bits 0-15 are the VM contexts0-15 */
amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
return pd_addr;
}
static void gmc_v6_0_get_vm_pde(struct amdgpu_device *adev, int level,
uint64_t *addr, uint64_t *flags)
{
BUG_ON(*addr & 0xFFFFFF0000000FFFULL);
}
static void gmc_v6_0_get_vm_pte(struct amdgpu_device *adev,
struct amdgpu_bo_va_mapping *mapping,
uint64_t *flags)
{
*flags &= ~AMDGPU_PTE_EXECUTABLE;
*flags &= ~AMDGPU_PTE_PRT;
}
static void gmc_v6_0_set_fault_enable_default(struct amdgpu_device *adev,
bool value)
{
u32 tmp;
tmp = RREG32(mmVM_CONTEXT1_CNTL);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
WREG32(mmVM_CONTEXT1_CNTL, tmp);
}
/**
+ * gmc_v8_0_set_prt - set PRT VM fault
+ *
+ * @adev: amdgpu_device pointer
+ * @enable: enable/disable VM fault handling for PRT
+*/
static void gmc_v6_0_set_prt(struct amdgpu_device *adev, bool enable)
{
u32 tmp;
if (enable && !adev->gmc.prt_warning) {
dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
adev->gmc.prt_warning = true;
}
tmp = RREG32(mmVM_PRT_CNTL);
tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
CB_DISABLE_FAULT_ON_UNMAPPED_ACCESS,
enable);
tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
TC_DISABLE_FAULT_ON_UNMAPPED_ACCESS,
enable);
tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
L2_CACHE_STORE_INVALID_ENTRIES,
enable);
tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
L1_TLB_STORE_INVALID_ENTRIES,
enable);
WREG32(mmVM_PRT_CNTL, tmp);
if (enable) {
uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
uint32_t high = adev->vm_manager.max_pfn -
(AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT);
WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
} else {
WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
}
}
static int gmc_v6_0_gart_enable(struct amdgpu_device *adev)
{
uint64_t table_addr;
int r, i;
u32 field;
if (adev->gart.bo == NULL) {
dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
return -EINVAL;
}
r = amdgpu_gart_table_vram_pin(adev);
if (r)
return r;
table_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
/* Setup TLB control */
WREG32(mmMC_VM_MX_L1_TLB_CNTL,
(0xA << 7) |
MC_VM_MX_L1_TLB_CNTL__ENABLE_L1_TLB_MASK |
MC_VM_MX_L1_TLB_CNTL__ENABLE_L1_FRAGMENT_PROCESSING_MASK |
MC_VM_MX_L1_TLB_CNTL__SYSTEM_ACCESS_MODE_MASK |
MC_VM_MX_L1_TLB_CNTL__ENABLE_ADVANCED_DRIVER_MODEL_MASK |
(0UL << MC_VM_MX_L1_TLB_CNTL__SYSTEM_APERTURE_UNMAPPED_ACCESS__SHIFT));
/* Setup L2 cache */
WREG32(mmVM_L2_CNTL,
VM_L2_CNTL__ENABLE_L2_CACHE_MASK |
VM_L2_CNTL__ENABLE_L2_FRAGMENT_PROCESSING_MASK |
VM_L2_CNTL__ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE_MASK |
VM_L2_CNTL__ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE_MASK |
(7UL << VM_L2_CNTL__EFFECTIVE_L2_QUEUE_SIZE__SHIFT) |
(1UL << VM_L2_CNTL__CONTEXT1_IDENTITY_ACCESS_MODE__SHIFT));
WREG32(mmVM_L2_CNTL2,
VM_L2_CNTL2__INVALIDATE_ALL_L1_TLBS_MASK |
VM_L2_CNTL2__INVALIDATE_L2_CACHE_MASK);
field = adev->vm_manager.fragment_size;
WREG32(mmVM_L2_CNTL3,
VM_L2_CNTL3__L2_CACHE_BIGK_ASSOCIATIVITY_MASK |
(field << VM_L2_CNTL3__BANK_SELECT__SHIFT) |
(field << VM_L2_CNTL3__L2_CACHE_BIGK_FRAGMENT_SIZE__SHIFT));
/* setup context0 */
WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12);
WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12);
WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
(u32)(adev->dummy_page_addr >> 12));
WREG32(mmVM_CONTEXT0_CNTL2, 0);
WREG32(mmVM_CONTEXT0_CNTL,
VM_CONTEXT0_CNTL__ENABLE_CONTEXT_MASK |
(0UL << VM_CONTEXT0_CNTL__PAGE_TABLE_DEPTH__SHIFT) |
VM_CONTEXT0_CNTL__RANGE_PROTECTION_FAULT_ENABLE_DEFAULT_MASK);
WREG32(0x575, 0);
WREG32(0x576, 0);
WREG32(0x577, 0);
/* empty context1-15 */
/* set vm size, must be a multiple of 4 */
WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
/* Assign the pt base to something valid for now; the pts used for
* the VMs are determined by the application and setup and assigned
* on the fly in the vm part of radeon_gart.c
*/
for (i = 1; i < AMDGPU_NUM_VMID; i++) {
if (i < 8)
WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
table_addr >> 12);
else
WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
table_addr >> 12);
}
/* enable context1-15 */
WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
(u32)(adev->dummy_page_addr >> 12));
WREG32(mmVM_CONTEXT1_CNTL2, 4);
WREG32(mmVM_CONTEXT1_CNTL,
VM_CONTEXT1_CNTL__ENABLE_CONTEXT_MASK |
(1UL << VM_CONTEXT1_CNTL__PAGE_TABLE_DEPTH__SHIFT) |
((adev->vm_manager.block_size - 9)
<< VM_CONTEXT1_CNTL__PAGE_TABLE_BLOCK_SIZE__SHIFT));
if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
gmc_v6_0_set_fault_enable_default(adev, false);
else
gmc_v6_0_set_fault_enable_default(adev, true);
gmc_v6_0_flush_gpu_tlb(adev, 0, 0, 0);
dev_info(adev->dev, "PCIE GART of %uM enabled (table at 0x%016llX).\n",
(unsigned)(adev->gmc.gart_size >> 20),
(unsigned long long)table_addr);
adev->gart.ready = true;
return 0;
}
static int gmc_v6_0_gart_init(struct amdgpu_device *adev)
{
int r;
if (adev->gart.bo) {
dev_warn(adev->dev, "gmc_v6_0 PCIE GART already initialized\n");
return 0;
}
r = amdgpu_gart_init(adev);
if (r)
return r;
adev->gart.table_size = adev->gart.num_gpu_pages * 8;
adev->gart.gart_pte_flags = 0;
return amdgpu_gart_table_vram_alloc(adev);
}
static void gmc_v6_0_gart_disable(struct amdgpu_device *adev)
{
/*unsigned i;
for (i = 1; i < 16; ++i) {
uint32_t reg;
if (i < 8)
reg = VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i ;
else
reg = VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + (i - 8);
adev->vm_manager.saved_table_addr[i] = RREG32(reg);
}*/
/* Disable all tables */
WREG32(mmVM_CONTEXT0_CNTL, 0);
WREG32(mmVM_CONTEXT1_CNTL, 0);
/* Setup TLB control */
WREG32(mmMC_VM_MX_L1_TLB_CNTL,
MC_VM_MX_L1_TLB_CNTL__SYSTEM_ACCESS_MODE_MASK |
(0UL << MC_VM_MX_L1_TLB_CNTL__SYSTEM_APERTURE_UNMAPPED_ACCESS__SHIFT));
/* Setup L2 cache */
WREG32(mmVM_L2_CNTL,
VM_L2_CNTL__ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE_MASK |
VM_L2_CNTL__ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE_MASK |
(7UL << VM_L2_CNTL__EFFECTIVE_L2_QUEUE_SIZE__SHIFT) |
(1UL << VM_L2_CNTL__CONTEXT1_IDENTITY_ACCESS_MODE__SHIFT));
WREG32(mmVM_L2_CNTL2, 0);
WREG32(mmVM_L2_CNTL3,
VM_L2_CNTL3__L2_CACHE_BIGK_ASSOCIATIVITY_MASK |
(0UL << VM_L2_CNTL3__L2_CACHE_BIGK_FRAGMENT_SIZE__SHIFT));
amdgpu_gart_table_vram_unpin(adev);
}
static void gmc_v6_0_vm_decode_fault(struct amdgpu_device *adev,
u32 status, u32 addr, u32 mc_client)
{
u32 mc_id;
u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
PROTECTIONS);
char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
(mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
MEMORY_CLIENT_ID);
dev_err(adev->dev, "VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
protections, vmid, addr,
REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
MEMORY_CLIENT_RW) ?
"write" : "read", block, mc_client, mc_id);
}
/*
static const u32 mc_cg_registers[] = {
MC_HUB_MISC_HUB_CG,
MC_HUB_MISC_SIP_CG,
MC_HUB_MISC_VM_CG,
MC_XPB_CLK_GAT,
ATC_MISC_CG,
MC_CITF_MISC_WR_CG,
MC_CITF_MISC_RD_CG,
MC_CITF_MISC_VM_CG,
VM_L2_CG,
};
static const u32 mc_cg_ls_en[] = {
MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
ATC_MISC_CG__MEM_LS_ENABLE_MASK,
MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
VM_L2_CG__MEM_LS_ENABLE_MASK,
};
static const u32 mc_cg_en[] = {
MC_HUB_MISC_HUB_CG__ENABLE_MASK,
MC_HUB_MISC_SIP_CG__ENABLE_MASK,
MC_HUB_MISC_VM_CG__ENABLE_MASK,
MC_XPB_CLK_GAT__ENABLE_MASK,
ATC_MISC_CG__ENABLE_MASK,
MC_CITF_MISC_WR_CG__ENABLE_MASK,
MC_CITF_MISC_RD_CG__ENABLE_MASK,
MC_CITF_MISC_VM_CG__ENABLE_MASK,
VM_L2_CG__ENABLE_MASK,
};
static void gmc_v6_0_enable_mc_ls(struct amdgpu_device *adev,
bool enable)
{
int i;
u32 orig, data;
for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
orig = data = RREG32(mc_cg_registers[i]);
if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_LS))
data |= mc_cg_ls_en[i];
else
data &= ~mc_cg_ls_en[i];
if (data != orig)
WREG32(mc_cg_registers[i], data);
}
}
static void gmc_v6_0_enable_mc_mgcg(struct amdgpu_device *adev,
bool enable)
{
int i;
u32 orig, data;
for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
orig = data = RREG32(mc_cg_registers[i]);
if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_MGCG))
data |= mc_cg_en[i];
else
data &= ~mc_cg_en[i];
if (data != orig)
WREG32(mc_cg_registers[i], data);
}
}
static void gmc_v6_0_enable_bif_mgls(struct amdgpu_device *adev,
bool enable)
{
u32 orig, data;
orig = data = RREG32_PCIE(ixPCIE_CNTL2);
if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_BIF_LS)) {
data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
} else {
data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
}
if (orig != data)
WREG32_PCIE(ixPCIE_CNTL2, data);
}
static void gmc_v6_0_enable_hdp_mgcg(struct amdgpu_device *adev,
bool enable)
{
u32 orig, data;
orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_MGCG))
data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
else
data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
if (orig != data)
WREG32(mmHDP_HOST_PATH_CNTL, data);
}
static void gmc_v6_0_enable_hdp_ls(struct amdgpu_device *adev,
bool enable)
{
u32 orig, data;
orig = data = RREG32(mmHDP_MEM_POWER_LS);
if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_LS))
data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
else
data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
if (orig != data)
WREG32(mmHDP_MEM_POWER_LS, data);
}
*/
static int gmc_v6_0_convert_vram_type(int mc_seq_vram_type)
{
switch (mc_seq_vram_type) {
case MC_SEQ_MISC0__MT__GDDR1:
return AMDGPU_VRAM_TYPE_GDDR1;
case MC_SEQ_MISC0__MT__DDR2:
return AMDGPU_VRAM_TYPE_DDR2;
case MC_SEQ_MISC0__MT__GDDR3:
return AMDGPU_VRAM_TYPE_GDDR3;
case MC_SEQ_MISC0__MT__GDDR4:
return AMDGPU_VRAM_TYPE_GDDR4;
case MC_SEQ_MISC0__MT__GDDR5:
return AMDGPU_VRAM_TYPE_GDDR5;
case MC_SEQ_MISC0__MT__DDR3:
return AMDGPU_VRAM_TYPE_DDR3;
default:
return AMDGPU_VRAM_TYPE_UNKNOWN;
}
}
static int gmc_v6_0_early_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
gmc_v6_0_set_gmc_funcs(adev);
gmc_v6_0_set_irq_funcs(adev);
return 0;
}
static int gmc_v6_0_late_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
else
return 0;
}
static unsigned gmc_v6_0_get_vbios_fb_size(struct amdgpu_device *adev)
{
u32 d1vga_control = RREG32(mmD1VGA_CONTROL);
unsigned size;
if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
size = AMDGPU_VBIOS_VGA_ALLOCATION;
} else {
u32 viewport = RREG32(mmVIEWPORT_SIZE);
size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) *
4);
}
return size;
}
static int gmc_v6_0_sw_init(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
adev->num_vmhubs = 1;
if (adev->flags & AMD_IS_APU) {
adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
} else {
u32 tmp = RREG32(mmMC_SEQ_MISC0);
tmp &= MC_SEQ_MISC0__MT__MASK;
adev->gmc.vram_type = gmc_v6_0_convert_vram_type(tmp);
}
r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 146, &adev->gmc.vm_fault);
if (r)
return r;
r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 147, &adev->gmc.vm_fault);
if (r)
return r;
amdgpu_vm_adjust_size(adev, 64, 9, 1, 40);
adev->gmc.mc_mask = 0xffffffffffULL;
r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(44));
if (r) {
dev_warn(adev->dev, "No suitable DMA available.\n");
return r;
}
adev->need_swiotlb = drm_need_swiotlb(44);
r = gmc_v6_0_init_microcode(adev);
if (r) {
dev_err(adev->dev, "Failed to load mc firmware!\n");
return r;
}
r = gmc_v6_0_mc_init(adev);
if (r)
return r;
amdgpu_gmc_get_vbios_allocations(adev);
r = amdgpu_bo_init(adev);
if (r)
return r;
r = gmc_v6_0_gart_init(adev);
if (r)
return r;
/*
* number of VMs
* VMID 0 is reserved for System
* amdgpu graphics/compute will use VMIDs 1-7
* amdkfd will use VMIDs 8-15
*/
adev->vm_manager.first_kfd_vmid = 8;
amdgpu_vm_manager_init(adev);
/* base offset of vram pages */
if (adev->flags & AMD_IS_APU) {
u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
tmp <<= 22;
adev->vm_manager.vram_base_offset = tmp;
} else {
adev->vm_manager.vram_base_offset = 0;
}
return 0;
}
static int gmc_v6_0_sw_fini(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
amdgpu_gem_force_release(adev);
amdgpu_vm_manager_fini(adev);
amdgpu_gart_table_vram_free(adev);
amdgpu_bo_fini(adev);
release_firmware(adev->gmc.fw);
adev->gmc.fw = NULL;
return 0;
}
static int gmc_v6_0_hw_init(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
gmc_v6_0_mc_program(adev);
if (!(adev->flags & AMD_IS_APU)) {
r = gmc_v6_0_mc_load_microcode(adev);
if (r) {
dev_err(adev->dev, "Failed to load MC firmware!\n");
return r;
}
}
r = gmc_v6_0_gart_enable(adev);
if (r)
return r;
return r;
}
static int gmc_v6_0_hw_fini(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
gmc_v6_0_gart_disable(adev);
return 0;
}
static int gmc_v6_0_suspend(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
gmc_v6_0_hw_fini(adev);
return 0;
}
static int gmc_v6_0_resume(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
r = gmc_v6_0_hw_init(adev);
if (r)
return r;
amdgpu_vmid_reset_all(adev);
return 0;
}
static bool gmc_v6_0_is_idle(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
u32 tmp = RREG32(mmSRBM_STATUS);
if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
return false;
return true;
}
static int gmc_v6_0_wait_for_idle(void *handle)
{
unsigned i;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
for (i = 0; i < adev->usec_timeout; i++) {
if (gmc_v6_0_is_idle(handle))
return 0;
udelay(1);
}
return -ETIMEDOUT;
}
static int gmc_v6_0_soft_reset(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
u32 srbm_soft_reset = 0;
u32 tmp = RREG32(mmSRBM_STATUS);
if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
if (!(adev->flags & AMD_IS_APU))
srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
}
if (srbm_soft_reset) {
gmc_v6_0_mc_stop(adev);
if (gmc_v6_0_wait_for_idle(adev)) {
dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
}
tmp = RREG32(mmSRBM_SOFT_RESET);
tmp |= srbm_soft_reset;
dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
WREG32(mmSRBM_SOFT_RESET, tmp);
tmp = RREG32(mmSRBM_SOFT_RESET);
udelay(50);
tmp &= ~srbm_soft_reset;
WREG32(mmSRBM_SOFT_RESET, tmp);
tmp = RREG32(mmSRBM_SOFT_RESET);
udelay(50);
gmc_v6_0_mc_resume(adev);
udelay(50);
}
return 0;
}
static int gmc_v6_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *src,
unsigned type,
enum amdgpu_interrupt_state state)
{
u32 tmp;
u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
switch (state) {
case AMDGPU_IRQ_STATE_DISABLE:
tmp = RREG32(mmVM_CONTEXT0_CNTL);
tmp &= ~bits;
WREG32(mmVM_CONTEXT0_CNTL, tmp);
tmp = RREG32(mmVM_CONTEXT1_CNTL);
tmp &= ~bits;
WREG32(mmVM_CONTEXT1_CNTL, tmp);
break;
case AMDGPU_IRQ_STATE_ENABLE:
tmp = RREG32(mmVM_CONTEXT0_CNTL);
tmp |= bits;
WREG32(mmVM_CONTEXT0_CNTL, tmp);
tmp = RREG32(mmVM_CONTEXT1_CNTL);
tmp |= bits;
WREG32(mmVM_CONTEXT1_CNTL, tmp);
break;
default:
break;
}
return 0;
}
static int gmc_v6_0_process_interrupt(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
u32 addr, status;
addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
if (!addr && !status)
return 0;
if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
gmc_v6_0_set_fault_enable_default(adev, false);
if (printk_ratelimit()) {
dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
entry->src_id, entry->src_data[0]);
dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n",
addr);
dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
status);
gmc_v6_0_vm_decode_fault(adev, status, addr, 0);
}
return 0;
}
static int gmc_v6_0_set_clockgating_state(void *handle,
enum amd_clockgating_state state)
{
return 0;
}
static int gmc_v6_0_set_powergating_state(void *handle,
enum amd_powergating_state state)
{
return 0;
}
static const struct amd_ip_funcs gmc_v6_0_ip_funcs = {
.name = "gmc_v6_0",
.early_init = gmc_v6_0_early_init,
.late_init = gmc_v6_0_late_init,
.sw_init = gmc_v6_0_sw_init,
.sw_fini = gmc_v6_0_sw_fini,
.hw_init = gmc_v6_0_hw_init,
.hw_fini = gmc_v6_0_hw_fini,
.suspend = gmc_v6_0_suspend,
.resume = gmc_v6_0_resume,
.is_idle = gmc_v6_0_is_idle,
.wait_for_idle = gmc_v6_0_wait_for_idle,
.soft_reset = gmc_v6_0_soft_reset,
.set_clockgating_state = gmc_v6_0_set_clockgating_state,
.set_powergating_state = gmc_v6_0_set_powergating_state,
};
static const struct amdgpu_gmc_funcs gmc_v6_0_gmc_funcs = {
.flush_gpu_tlb = gmc_v6_0_flush_gpu_tlb,
.emit_flush_gpu_tlb = gmc_v6_0_emit_flush_gpu_tlb,
.set_prt = gmc_v6_0_set_prt,
.get_vm_pde = gmc_v6_0_get_vm_pde,
.get_vm_pte = gmc_v6_0_get_vm_pte,
.get_vbios_fb_size = gmc_v6_0_get_vbios_fb_size,
};
static const struct amdgpu_irq_src_funcs gmc_v6_0_irq_funcs = {
.set = gmc_v6_0_vm_fault_interrupt_state,
.process = gmc_v6_0_process_interrupt,
};
static void gmc_v6_0_set_gmc_funcs(struct amdgpu_device *adev)
{
adev->gmc.gmc_funcs = &gmc_v6_0_gmc_funcs;
}
static void gmc_v6_0_set_irq_funcs(struct amdgpu_device *adev)
{
adev->gmc.vm_fault.num_types = 1;
adev->gmc.vm_fault.funcs = &gmc_v6_0_irq_funcs;
}
const struct amdgpu_ip_block_version gmc_v6_0_ip_block =
{
.type = AMD_IP_BLOCK_TYPE_GMC,
.major = 6,
.minor = 0,
.rev = 0,
.funcs = &gmc_v6_0_ip_funcs,
};
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